How many minutes are required to be at the airport, through security, for a domestic first flight of trip?

For a domestic flight, it is typically recommended to arrive at the airport at least 45 minutes before the scheduled departure time to ensure a smooth journey through check-in, security screening, and getting to the departure gate. This timeframe allows enough time for passengers to check in, go through security, and reach their designated boarding area without feeling rushed.

Arriving 45 minutes prior is particularly important in cases where there might be unexpected delays, such as longer lines at security or other unforeseen issues. Thus, the 45-minute recommendation is a commonly accepted guideline aimed at allowing passengers to board their flights comfortably without anxiety about missing their departure.